Zinc Oxide

Base Information

• Chemical Name: Zinc Oxide
• CAS No.: 1314-13-2
• Deprecated CAS: 185461-95-4,56592-00-8,57206-86-7,78590-82-6,8011-84-5,8047-36-7,8047-69-6,8050-42-8,8051-03-4,143477-34-3,1035159-71-7,1079737-05-5,1158650-40-8,1328870-15-0,1352121-28-8,1404365-15-6,768390-32-5,1227055-55-1,1434578-69-4,1449007-65-1,1613512-66-5,1621460-93-2,1629869-94-8,1799390-27-4,1834590-43-0,1928718-93-7,2082751-40-2,2111100-94-6,1641546-65-7,2251116-56-8,2257421-96-6,2377780-57-7,2455522-12-8,2530009-82-4,2567725-07-7,2606843-55-2,91315-44-5,2704650-42-8
• Molecular Formula: ZnO
• Molecular Weight: 81.37
• Hs Code.: 2817.00
• European Community (EC) Number: 215-222-5,617-101-6,939-819-1
• ICSC Number: 0208
• UN Number: 3077,1516
• Wikipedia: Zinc(II) oxide,Zinc oxide,Zinc_oxide,Zincite
• Wikidata: Q190077
• NCI Thesaurus Code: C949
• RXCUI: 11423
• Mol file: 1314-13-2.mol

Synonyms:Lassar Paste;Lassar's Paste;Lassars Paste;Oxide, Zinc;Paste, Lassar's;Zinc Oxide

Chemical Property of Zinc Oxide

Chemical Property:

• Appearance/Colour: white powder
• Melting Point: 1975 °C
• Refractive Index: 2.008~2.029
• Boiling Point: 2360oC
• Flash Point: 27℃
• PSA: 17.07000
• Density: 5.606 g/cm³
• LogP: -0.12130
• Storage Temp.: Store at +5°C to +30°C.
• Solubility.: 0.0016g/l insoluble
• Water Solubility.: 1.6 mg/L (29 ºC)
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 79.924056
• Heavy Atom Count: 2
• Complexity: 2
• Transport DOT Label: Class 9

Purity/Quality:

98%, ^*data from raw suppliers

Zinc oxide ^*data from reagent suppliers

Safty Information:

• Pictogram(s): N,Xn
• Hazard Codes: N,Xn,F
• Statements: 50/53-20-43-36/38-20/21/22-67-66-10-11
• Safety Statements: 60-61-7/9-36/37-26-16

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metals, Inorganic Compounds
• Canonical SMILES: O=[Zn]
• Recent EU Clinical Trials: Efficacy of topical application of zinc oxide ointment compared with zinc oxide paste and tocoferol, for treating diaper dermatitis in infant: a randomized, controlled, triple blind study
• Recent NIPH Clinical Trials: Treatment for intoractable perianal dermatitis by CMC Zinc oxide ointment
• Inhalation Risk: A harmful concentration of airborne particles can be reached quickly , especially for fume.
• Effects of Short Term Exposure: May cause mechanical irritation to the eyes and respiratory tract. The fume is irritating to the respiratory tract. Inhalation of fumes may cause metal fume fever.
• Description: Zinc oxide occurs in nature as mineral zincite. It is the most important zinc compound and has numerous industrial applications. Zinc oxide is the pigment in white paints. It is used to make enamels, white printing inks, white glue, opaque glasses, rubber products and floor tiles. It is used in cosmetics, soaps, pharmaceuticals, dental cements, storage batteries, electrical equipment, and piezoelectric devices. Other applications are as a flame retardant, as a UV absorber in plastics, and a reagent in analytical chemistry. A major application of zinc oxide is in the preparation of most zinc salts. In medicine, the compound is used as an antiseptic, an astringent and a topical protectant.
• Uses: ▼▲ Industry Application Role/benefit Rubber Manufacture of rubber Vulcanization accelerator/promotes the vulcanization rate and increases the vulcanization crosslinking degree Anti-aging agent/ protects rubber from fungi and UV light Reinforcing agent/promotes the intensity and thermal conductivity of rubber Ceramic Manufacture of ceramic glaze Fluxing agent/declines the melting point and improves the elasticity of glazes Pigment Paints,rubber,oil painting,paper coatings,ceramic,mineral makeup,etc. White pigment Coatings Metal anti-corrosive coatings Paints additive/helps paints to retain their flexibility and adherence for many years Plastic coatings Anti solar radiation and anti oxidation Energy-saving or heat-protecting windows ZnO:Al coatings selectively lets the visible part of the spectrum in Nuclear reactors Corrosion prevention Reduces the corrosion and minimizes the amount of dissolved materials Desulfurization of chemical raw gas Synthetic ammonia,petroleum,natural gas,methane,etc. Removes hydrogen sulfide by the reaction:H2S + ZnO → H2O + ZnS Medicine Treatment of a variety of skin conditions Active ingredient/antibacterial properties Antiseptic ointments,creams and lotions Common ingredient/deodorizing and antibacterial properties Zinc oxide tape Component/antibacterial properties Ciprofloxacin Additive/enhance the antibacterial activity of ciprofloxacin Food Breakfast cereals, prepackaged foods,etc. Additive/source of zinc Animal feed Others Cigarette filters Helps to removes significant amounts of HCN and H2S from tobacco smoke without affecting its flavor Suntan lotion and UV-blocking sunglasses Key ingredient/provides strong protection against UVA and UVB ultraviolet radiation Zinc oxide nanorod sensor Detects changes in electric current passing through zinc oxide nanowires Li-ion battery Anode material/ high theoretical capacity；cheap and environmental friendly Self-powered nanosystems Stretching and releasing zinc oxide nanowires can deliver alternating current Ferromagnetic material ZnO can become ferromagnetic after being doped with 1–10% of magnetic ions Laser diodes and light emitting diodes Wide direct band gap and larger exciton binding energy Organic synthesis Catalyst Calibration of ethylenediamine tetraacetic acid disodium Reference agent Zinc oxide is added to paints as a pigment and mold inhibitor and is known as zinc white when it is used as an oil paint by artists. It is used for cosmetics (ointment to protect nose and lips from ultraviolet sunlight), as a seed treatment, and as a dietary supplement. Zinc oxide, ZnO, is a reactive white pigment prepared by vaporizing metallic zinc at a temperature of about 900°C in the presence of oxygen. As a pigment, ZnO is basic in nature and can react with certain types of acidic paint resins resulting in the formation of a brittle film on drying. Formation of such films leads to premature failure of paint. For this reason as well as because of its low RI,ZnO cannot compete for the hiding power of TiO2. Consequently, ZnO is rarely used as the sole pigment in modern coatings, although it finds some use in admixture with other pigments. ZnO is used in exterior house paints as a fungicide and in some can linings as a sulfide scavenger. Antibiotic Preparation of zinc standard solutions. zinc oxide has been used to protect, soothe, and heal the skin. Zinc oxide provides an excellent barrier to the sun and other irritants. It is somewhat astringent, anti-septic, and anti-bacterial. When used in sunscreen preparations, it provides both uVA and uVB protection, and can contribute to and/or increase SPF. At the appropriate particle size, zinc oxide is transparent in the visible light spectrum but opaque in the uVC ranges, thereby avoiding a whitening effect when incorporated into sunscreen preparations. Zinc oxide is included on the FDA’s list of approved sunscreen chemicals. It demonstrates an impressive synergistic effect when combined with organic sunscreens. Zinc oxide is also used when a white color is desired for a product. It is obtained from zinc ore, a commonly found mineral, and is relatively non-allergenic.
• Physical properties: White or yellowish-white powder; odorless; bitter taste; hexagonal crystal; refractive index 2.008; density 5.606 g/cm3; melts at 1,975°C; practically insoluble in water, 1.6 mg/L at about 30°C; soluble in dilute acids, ammonia solu 990 tion, and alkali hydroxides.